I believe 22. Because 11+3=14, but without that, you would add 11 to 11, which gives you 22
Answer:
step 1: move the -4 to the right: x^2 -2x = 4
step 2: add 1 to each side: x^2 -2x + 1 = 4 + 1
step 3: factor the left side and simplify the right side: (x-1)^2 = 5
step 4: take the square root of each side: x - 1 = sqr root of 5
step 5: move the 1 to the other side:
and 
Y=mx+b is the slope formula
5x-y
=5(3)-1
=15-1
=14
Therefore, the answer is 14.